Crude-oil burner



June 30,1925.

CRUDE OIL BURNER Filed Nov; 6. 1924 2 sheets-sheet 1' JIHZQ'E 3Q, 1925. F. W. SCHEBFELE CRUDE OIL BURNER 'Filed Nov. 6, 1924 2 Sheets-Sheet 2 Patented dune 32, 1225.

FREDERICK W'. SCHEEFELE, OF AUDUBON, NEW JERSEY.

CRUDE-OIL BURNER.

Application filed November accompanying drawings.

This invention relates to crude oil burners, and has for an important object thereof the provision of a device of this character which may be cheaply and readily produced and installed.

A further object of the invention is to provide a device of this character so'that a considerable portion of the smoke formed during operation of the burner is passed through the generated flame to be consumed.

A still further object of the invention is to provide a de'vice of this character having a blower supplying a draft of air to the burner, and connections between the burner and the conduit conducting air from the blower to the burner whereby the smoke and a portion of the flame are aspirated and drawn through the pipe, together with the air from the blower, thereby heating this air and returning the smol to the flame of the burner.

A still further object of the invention is to, provide a device of this character in which the fuel pipe is led through the air duct so that it is heated by. the returned flame from the burner.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a plan view of a crude oil burner constructed in. accordance with my invention;

Figure 2 is a side elevation thereof;

Figure 3 is an enlarged vertical sectional view therethrough;

Figure 4 is a perspective of the burner proper removed.

Referring now ore particularly to the drawings, the numeral 10 indicates a burner element which is adapted to'be arranged within the furnace, and 11 what may be designated a feeding element adapted to be arranged exteriorly of the furnace and with which is associateda blower 12 hereinafter more fully'set forth. The burner element 6, 1924. Serial No. 748,226.

comprises a body therefor. provide a vertically extending pocket or casting 13 and a cap 14. The body casting is formed to urner chamber 15, and upon the exterior of this chamber a conduit 16 having one enn thereof opening vertically and the other en; thereof opening horizontally. The cap 14 in the form of a casting providing a cover for the burner chamber having a vertical opening 17 therein of less size than the burner'chamber so that the outlet of the burner chamber is reduced. The cap is furthen formed to provide a goose-neck 18 communicating at its lower end, when the cap is in position, with the upper end of the vertically extending portion 16- of the conduit 16 and at its upper end terminating above and in spaced relation to the opening 17.

The goose-neck 18 has a bore of less diam-- eter than the opening 1? but at the end thereof disposed above the opening 17 is formed upon the exterior of the bore with a flattened enlargement 19 of reater diameter than the opening 17 The urne cham ber 15 is provided with a horizontally extending inlet 20 'opening into the chamber slightly above the lower end thereof.

Disposed within the burnerchamber is a burner 21 having a wall 22 abutting the wall of the burner chamber above and be low the inlet 20 thereof and of less width than the diameter of such inlet. At the bottom this wall is provided with a horizontally disposed shelf 23 extending into the chamber 15 and increasing in width as it extends into the chamber.- What may be termed the rear edge of this shelf, or that edge remote from the wall 22, has formed thereon an upstanding rib or flange 24, the purpose of which will presently appear.

Above the shelf 23 is formed what may be.

termed a generator shelf 25 which is of less length than the shelf 23 and is connected with the shelf adong its side edges by sidewalls 26. These side walls combine with the flange 24 and vertical front wall 22 to provide upon the upper surface of the shelf 23 a pocket which is filled with asbestos or these openings when the burner 22 is in proper position in the chamber 15 having their axis parallel to the axis of the outlet 20 of the burnt lr chamber. T he feeding element 11 consists of a casting formed to provide an inlet 31 and an outlet 32 which are aligned, the inlet b Eng adapted for connection with' the exhaust of the blower 12, while the outlet is connected wit-h the inlet of the chamber 15 by a conduit 33. Between the inlet and the outlet, the casting is enlarged, as at ill, to provide a chamber 35 into which from the inlet end of the feeding element- 11 projects a sleeve 36. At the end of the chamber next adjacent the inlet 31 an o )cning 37 is formed through the wall thereo this opening communicating with one end of a horizontally extending conduit formed in the feeding element ll, the opposite end of which is connected with the horizontally extending section 16" of the conduit 10 of the burner section 10 by a conduit 38.

Projecting through the walls of the feeding element 11 at the inlet 31 thereof are a pair of fuel feeding conduits 39 and 40 which are extended through the sleeve 36 the rear end of the chamber 35 and conduit 33 and have their rear ends engaged in the openings 29 and 30, the pipe 35) engaging in the opening 29, while the pipe '40 engages in the opening 30. The pipe 40, which is provided exteriorly of the feeding element 11 with a control valve 41, is preferably in communication with a source of gas if this is available. In event'it is not, it is placed in communication with a source of light, readily ignited fuel oil. The pipe 39 exteriorly of the feeding element 11 is in communication with a source of crude oil supply, as indicated, and has preferably arranged therein a manually operated valve 4-2 which may be operated to completely cut off the supply, and an automatically operated valve 43 of the type required by the Fire Underwriters to prevent flooding of the burner and operated by the flow from a return pipe -l-l; from the burner, and a further valve adapted to be operated from a remote point by a flexible lead 46 which me be connected with a thermostat or any suitable controlling element.

The operation of the device is as follows: In starting the fire, the valve 41 is first opened and the gas or other fuel ignited in the burner chamber 15. This forms a pilot flame, particularly if gas is en'iployed, which tends to heatthc shelf 25, so that when crude oil is admitted through the pipe 39 itwill be particularly vaporized upon this shelf and may be readily ignited by the pilot flame. Those portions not vapm and by the heat will flow over the rear edge of the shelf 25 downwardly through the notches 23 which subdivide it into a plurality of line streams which are readily acted upon by the pilot flame, portions not weaves consumed falling upon the asbestos within the pocket in the upper surface of the sheh where they are finally heated and vaporized. As theburncr heats, the blower 12 is put into operation and causes a draft of air to. be passed through the pipe to the burner. The forward vertical wall of the burner subdivides this draft causing it to pass upon opposite sides of the burner 21 and in converging after passing the burner, and due to the curved construction of the walls ofthe burner chambetythus current of air is caused to circulate rapidly and intermingle with the gases promoting combustion thereof. The flame passing upwardly through the opening 17 impinges against the flattened enlargement of the lower end of the goose-neck, and a considerable portion of. the smoke and flame will pass into this goose-neck and so through the conduit 16,- the pipe 38 and opening 37 into the chamber Tendency of the smoke and lame to take a different path will be increased by the aspirating effect of the blower impelled air passing outwardly through the rear end of the sleeve 36. It is pointed out that this not only assists in reducing the amount of smoke finally emerging from the furnace, but likewise serves to heat the pipes 39 and 40 and the air which is passing to the burner, with the result that both the fuel oil and the air are in the condi tion in which they are most readily combined and ignited.

It will be obvious that a. device of this character may be very readily produced and installed and will be highly cfiicient in its operation. It will vious that the construction hereinbefore set forth is capable of acertain range of change and modification without materially departing from the spirit of my invention, and I accordingly do not limit myself to such specific structure except as hereinafter claimed.

I claim:-

1. In a crude oil burner, a casting formed to provide a vertically extending burner chamber and a conduit upon the exterior of the chamber, the chamber having an inlet formed in the side wall thereof, a cap for the chamber providing a cover therefor having a vertical opening of less size than the burner chamber, the cap including a gooseneclt conduit communicating at one end with the conduit of the burner chamber when the cap is in position and having the opposite end thereof opposed to the opening of the cap and means for introducing a forced draft to the burner chamber including an aspirator communicating at its inlet end with the other end of the conduit of the burner chamber.

2. In a crude oil burner, a cat-Hg formed to provide a vertically extending burner furthermore be ob,

the burner chamber,

chamber and a conduit upon the exterior of the chamber having an inlet side wall thereof, a cap for the chamber providing a cover therefor having a vertical opening of less size than the cap including a goose-neck conduit communicating at one end. with .the conduit of the burner chamber when the cap is in position and having the opposite end thereof opposed to the opening of'the cap and means for introducing a forced draft to the burner chamber including an aspirator communicating at its inlet end with the other end of the conduit of the burner chamber, and a burner within the chamber abutting the side wall of the chamber above and below the inlet open- 'ing thereof and having a Wall opposing said opening of less width than the opening, the side Walls of the burner divergin to thereby direct incoming air to the sides of the burner chamber.

3. In a crude oil burner, a casting formed to provide a vertically extending open topped burner chamber jacent the lower end thereof, a conduit for supplying a forced draft of air to the inlet of the burner chamber, a cap for the chamher having a vertical opening of less size than the chamber,

having an inlet ad and a goose-neck conduit carried by the cap having one end thereof "opposed to thepopening of the burner cap opening of less-size, than the chamber,

a goose-neck conduit carried by the cap having one end thereof opposed to the opening of the burner cap and at its opposite end having connection with the first named conduit in a manner producing an aspirating effect in the goose-neck and a burnerwithin the burner chamber abutting the side wall of the chember'above and below the inlet opening thereof and having a Wall opposing said opening of less width than the opening, the side, walls of the burner diverging to thereby direct incoming air to the sides of the burner chamber.

In testimony whereof I hereunto aifix my signature.

FREDERICK W. SGHEIFELE.

a cap for the cham- 

